SCOTTSDALE DIVISION UMA5.0A thru UMA170CA
ULTRAMITETM SURFACE MOUNT 500 Watt
Transient Voltage Suppressor 5.0 to 170 V
DESCRIPTION PACKAGE WWW.Microsemi .COM
UltraMiteTM
These 500 watt transient voltage suppressors offer capabilities only found in larger
packages. They are used for protecting against a variety of transients from inductive
switching environments or lower levels of induced secondary lightning effects of
IEC61000-4-5. It offers the same size footprint as the popular DO-214AC or
BA package outlines except with a much lower profile height. Its robust
configuration in a "2010" style MELF package prevents damage to extended-
lead terminals and virtually eliminates inductive parasitics from fast rise-time
transients with very short internal/external conduction paths. They are also very
effective in protection from ESD or EFT per IEC61000-4-2 and IEC61000-4-4.
IMPORTANT: For the most current data, consult MICROSEMI's website: http://www.microsemi.com
FEATURES APPLICATIONS / BENEFITS
Available as a unidirectional or bidirectional device Protects sensitive components such as IC's, CMOS,
(bidirectional with CA suffix) Bipolar, BiCMOS, ECL, DTL, T2L, etc.
Fast response time Protection from switching transients & induced RF
Suppresses transients up to 500 W @ 10/1000 s Compliant to IEC61000-4-2 and IEC61000-4-4 for
(see Figure 1, 2, and 3). ESD and EFT protection respectively
Robust 2010 MELF style flat package configuration Secondary lightning protection per IEC61000-4-5
for accurate pick-and-place handling with 42 Ohms source impedance:
Fits same small narrow PCB pad layouts as "SMAJ" Class 1: UMA5.0 to UMA100A or CA
Class 2: UMA5.0 to UMA51A or CA
packages in JEDEC DO-214AC (or BA) Class 3: UMA5.0 to UMA24A or CA
Very low height profile (approximately 1 mm) Class 4: UMA5.0 to UMA12A or CA
Available on Tape and Reel
Built-in stress relief with similar COE as PC boards Secondary lightning protection per IEC61000-4-5
Optional Lead-Free design/finish (UMAF5.0A-170CA) with 12 Ohms source impedance:
Options for screening in accordance with MIL-PRF-
Class 1: UMA5.0 to UMA30A or CA
19500 for JAN, JANTX, JANTXV, and JANS are Class 2: UMA5.0 to UMA16A or CA
available by adding MQ, MX, MV, or MSP prefixes Virtually zero inductive parasitics with minimal Ldi/dt
respectively to part numbers. voltage overshoots for fast-rise-time transients
MAXIMUM RATINGS MECHANICAL AND PACKAGING UMA5.0A UMA170CA
Peak Pulse Power dissipation at 25C: 500 watts at FRP substrate material and epoxy under-fill package
10/1000 s (also see Fig 1, 2, and 3) meeting UL94V-0
Impulse repetition rate (duty factor): 0.01% Terminals solder plated (solderable per MIL-STD-
750, Method 2026)
tclamping (0 volts to V(BR) min.): < 100 ps theoretical for
unidirectional and < 5 ns for bidirectional Body marked with part number without UMA prefix
(ie. 05, 15A, 33A, 58, 150CA, etc.)
Operating and Storage temperature: -55C to +150C
Thermal resistance: 50 C/W junction to lead, or Cathode designated with band (no band on
bidirectional)
115C/W junction to ambient when mounted on FR4
PC board (1oz Cu) with recommended 5 mm2 pads Weight: 0.020 grams (approximate)
(see last page)
Steady-State Power: 2.5 watts at TL = 25oC, or 1.08 Tape & Reel packaging per EIA-481-2 with 12 mm
watts at TA = 25C when mounted on FR4 PC board tape and 3000 units/reel (7 inch) or 10,000 units/reel
with recommended 5 mm2 footprint pads (13 inch)
Forward Surge Current at 25C: 40 amps peak, 8.3 See package dimensions on last page
ms half-sine wave. Maximum voltage of 3.50 V
(unidirectional only)
Solder temperatures: 260 C for 10 s (maximum)
Copyright 2002 Microsemi Page 1
MSCUMA5.0.PDF 10-16-2003 REV B
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
SCOTTSDALE DIVISION UMA5.0A thru UMA170CA
ULTRAMITETM SURFACE MOUNT 500 Watt
Transient Voltage Suppressor 5.0 to 170 V
ELECTRICAL CHARACTERISTICS @25oC WWW.Microsemi .COM
MICROSEMI RATED BREAKDOWN BREAKDOWN MAXIMUM PEAK MAXIMUM
PART NUMBER* WORKING VOLTAGE CURRENT CLAMPING PULSE STANDBY
VOLTAGE CURRENT CURRENT
PEAK V(BR) MIN I(BR)
STANDOFF @ I(BR) VC @ IPP IPP ID @ VWM
VOLTAGE
VWM
(V) (V) (mA) (V) (A) (A)
UMA5.0A 5.0 6.40 10 9.2 54.3 800
UMA6.0A
UMA6.5A 6.0 6.67 10 10.3 48.5 800
UMA7.0A
UMA7.5A 6.5 7.22 10 11.2 44.7 500
UMA8.0A
UMA8.5A 7.0 7.78 10 12.0 41.7 200
UMA9.0A
UMA10A 7.5 8.33 1 12.9 38.8 100
UMA11A
UMA12A 8.0 8.89 1 13.6 36.7 50
UMA13A
UMA14A 8.5 9.44 1 14.4 34.7 10
UMA15A
UMA16A 9.0 10.0 1 15.4 32.6 5
UMA17A
UMA18A 10 11.1 1 17.0 29.4 5
UMA20A
UMA22A 11 12.2 1 18.2 27.4 5
UMA24A
UMA26A 12 13.3 1 19.9 25.1 5
UMA28A
UMA30A 13 14.4 1 21.5 23.2 5
UMA33A
UMA36A 14 15.6 1 23.2 21.5 5
UMA40A
UMA43A 15 16.7 1 24.4 20.6 5
UMA45A
UMA48A 16 17.8 1 26.0 19.2 5
UMA51A
UMA54A 17 18.9 1 27.6 18.1 5
UMA58A
UMA60A 18 20.0 1 29.2 17.2 5
UMA64A
UMA70A 20 22.2 1 32.4 15.4 5
UMA75A
UMA78A 22 24.4 1 35.5 14.1 5
UMA85A
UMA90A 24 26.7 1 38.9 12.8 5
UMA100A
UMA110A 26 28.9 1 42.1 11.9 5
UMA120A
UMA130A 28 31.1 1 45.4 11.0 5
UMA150A
UMA160A 30 33.3 1 48.4 10.3 5
UMA170A
33 36.7 1 53.3 9.4 5
36 40.0 1 58.1 8.6 5
40 44.4 1 64.5 7.8 5
43 47.8 1 69.4 7.2 5
45 50.0 1 72.7 6.9 5
48 53.3 1 77.4 6.5 5
51 56.7 1 82.4 6.1 5
54 60.0 1 87.1 5.7 5
58 64.4 1 93.6 5.3 5
60 66.7 1 96.8 5.2 5
64 71.1 1 103.0 4.9 5
70 77.8 1 113 4.4 5
75 83.3 1 121 4.1 5
78 86.7 1 126 4.0 5
85 94.4 1 137 3.6 5
90 100 1 146 3.4 5 UMA5.0A UMA170CA
100 111 1 162 3.1 5
110 122 1 177 2.8 5
120 133 1 193 2.6 5
130 144 1 209 2.4 5
150 167 1 243 2.1 5
160 178 1 259 1.9 5
170 189 1 275 1.8 5
* Order with "CA" suffix for bi-directional types. Capacitance will be that shown in figure 4.
Copyright 2002 Microsemi Page 2
MSCUMA5.0.PDF 10-16-2003 REV B
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
SCOTTSDALE DIVISION UMA5.0A thru UMA170CA
ULTRAMITETM SURFACE MOUNT 500 Watt
Transient Voltage Suppressor 5.0 to 170 V
SYMBOLS & DEFINITIONS WWW.Microsemi .COM
Symbol Definition Symbol Definition
VWM Working Peak (Standoff) Voltage IPP Peak Pulse Current
PPP Peak Pulse Power Clamping Voltage
V(BR) Breakdown Voltage VC Breakdown Current for V(BR)
ID Standby Current
I(BR)
GRAPHS
tw Microseconds
Figure 1 Peak Pulse Power (PPP) Kilowatts versus
Pulse Width (tW) - Microseconds
Test wave form
parameterxs
tr = 10sec.
tp = 1000sec.
Peak Pulse Power (Ppp) or Current UMA5.0A UMA170CA
(IPP) in percentage of 25oC Rating
C Capacitance - Picofarads
FIGURE 2 Lead Temperature oC V(BR) - Breakdown Voltage Volts
Pulse Waveform for Exponential Surge FIGURE 4
FIGURE 3
Derating Curve Typical Capacitance vs. Breakdown Voltage
Copyright 2002 Microsemi Page 3
MSCUMA5.0.PDF 10-16-2003 REV B
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
SCOTTSDALE DIVISION UMA5.0A thru UMA170CA
ULTRAMITETM SURFACE MOUNT 500 Watt
Transient Voltage Suppressor 5.0 to 170 V
PACKAGE DIMENSIONS & PAD LAYOUT WWW.Microsemi .COM
PAD LAYOUT
INCHES MM
DIM MIN MAX MIN MAX
A .173 .181 4.40 4.60
B .083 .091 2.10 2.30
C .033 .045 .85 1.15
D .033 .045 .85 1.15 INCHES mm
E .002 .002 .05 .05 A .245 6.22
F .020 .020 .50 .50 B .075 1.90
C .103 2.62
UMA5.0A UMA170CA
Copyright 2002 Microsemi Page 4
MSCUMA5.0.PDF 10-16-2003 REV B
Scottsdale Division
8700 E. Thomas Rd. PO Box 1390, Scottsdale, AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
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